diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2014-01-07 13:30:45 -0800 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-01-08 15:48:57 +0100 |
| commit | e59150dcf7e126ebf89afacd372602f328d4d6fc (patch) | |
| tree | b2aa2be14d09c3eb5f02afa234aec9dce0c90daa /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | 576b259e65baf15f691010353f6ab06f7190c33f (diff) | |
| download | talos-op-linux-e59150dcf7e126ebf89afacd372602f328d4d6fc.tar.gz talos-op-linux-e59150dcf7e126ebf89afacd372602f328d4d6fc.zip | |
drm/i915/bdw: don't try to check IPS state on BDW v2
According to Art, we don't have a way to read back the state reliably at
runtime, through the control reg or the mailbox, at least not without risking
disabling it again. So drop the readout and checking on BDW.
v2: drop TODO comment (Paulo)
move POSTING_READ of control reg under HSW branch in disable (Paulo)
always report IPS as enabled on BDW (Paulo)
References: https://bugs.freedesktop.org/show_bug.cgi?id=71906
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 6fe7934b2894..16e8e09bbdd6 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1357,7 +1357,7 @@ static int i915_ips_status(struct seq_file *m, void *unused) return 0; } - if (I915_READ(IPS_CTL) & IPS_ENABLE) + if (IS_BROADWELL(dev) || I915_READ(IPS_CTL) & IPS_ENABLE) seq_puts(m, "enabled\n"); else seq_puts(m, "disabled\n"); |
